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31 Jan 2021 | eLABORATE

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New Prettau 3 Dispersive zirconia with Gradual-Triplex Technology: A triple gradient of natural colour, translucency and flexural strength

Prettau Dispersive zirconia materials - created by the South Tyrolean company Zirkonzahn - develop a gentle and natural colour gradient during the manufacturing process thanks to a special technique that does not blend colours into layers but disperses them evenly. With this Gradual-Triplex-Technology, a triple gradient has been developed for the new Prettau 3 Dispersive zirconia: indeed, in addition to the smooth gradient, translucency and flexural strength levels also change.


Whereas the incisally increasing translucency results in a highly translucent incisal edge, the cervically increasing flexural strength results in an extremely high flexural strength at the tooth neck. Accordingly, Prettau 3 Dispersive can be used for all kinds of zirconia restorations, although it is particularly suitable for monolithic rehabilitations. Blanks are also available with Ø 98 mm with step.

For a final prosthesis with colour matching to the patient's natural tooth colour, the new Zirkonzahn Shade Guides can be used. Composed of monolithic zirconia sample teeth, they exist for all Prettau Dispersive zirconia materials and are available in the shape of a premolar as well as lower and upper incisors (also with minimal cutback for a totally customised shade guide). If the final restoration is milled out of a Prettau Dispersive zirconia blank identical to the one of the shade guide used, the colour of the zirconia restoration corresponds 1:1 with the natural tooth colour of the patient.

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